test: make test-cli-syntax engine agnostic

Do not check the error message if it is generated by the JavaScript
engine (V8, ChakraCore, etc.). Do confirm that it is a `SyntaxError`.

PR-URL: #16272
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>

Author: Trott

test/parallel/test-cli-syntax.js

@@ -13,7 +13,9 @@ const syntaxArgs = [
   ['--check']
 ];
 
-const syntaxErrorRE = /^SyntaxError: Unexpected identifier$/m;
+// Match on the name of the `Error` but not the message as it is different
+// depending on the JavaScript engine.
+const syntaxErrorRE = /^SyntaxError: \b/m;
 const notFoundRE = /^Error: Cannot find module/m;
 
 // test good syntax with and without shebang